This happened at Fremont Dragstrip (aka Baylands) back in 87 or 88 if I remember right. I wasn't there when this happened - but I worked with Rob Renfrow (Don's son) who built the car. After working with him I could easily see why this happened besides the poor driving by Dad. Let's just say Rob wasn't the most safety oriented person.
(PC way of saying he was a hack!!) Don was extremely lucky to walk away.
Brent